Effect of dexfenfluramine on energy expenditure in obese patients on a very-low-calorie-diet.
Recasens M.A. | Barenys M. | Sola R. | Blanch S. | Masana L. | Salas Salvado J.
AIM: To investigate the effect of dexfenfluramine (dF) on Energy Expenditure (EE). DESIGN: 20 obese females were studied in a double-blind design. Pre-diet and at 14 and 28 days of VLCD and dF treatment (30 mg/d) or placebo, Resting Metabolic Rate (RMR), 3 h-Thermic Effect of Food (3 h-TEF) and body composition were determined. EE and body composition were measured by indirect calorimetry and bioelectrical impedance, respectively. RESULTS: No differences between groups were observed in relation to weight loss, body composition changes or RMR. At 3 h postprandial, the EE was still elevated in both groups. No changes on TEF were observed in the placebo group during VLCD. In contrast, TEF decreased in dF group during VLCD (P < 0.05). No significant differences in TEF at the end of the study were observed between groups. CONCLUSION: These results suggest that dF modifies 3 h-TEF but not RMR in obese patients during VLCD administration.
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